diff --git a/optimizedSD/txt2img_gradio.py b/optimizedSD/txt2img_gradio.py
index da820c28f..a8ddde5b9 100644
--- a/optimizedSD/txt2img_gradio.py
+++ b/optimizedSD/txt2img_gradio.py
@@ -189,4 +189,5 @@ def generate(prompt,ddim_steps,n_iter, batch_size, Height, Width, scale, ddim_et
     gr.Slider(64,4096,value = 512,step=64), gr.Slider(64,4096,value = 512,step=64), gr.Slider(0,50,value=7.5,step=0.1),gr.Slider(0,1,step=0.01),"text","checkbox", "checkbox",gr.Text(value = "outputs/txt2img-samples")],
     outputs=["image", "text"],
 )
-demo.launch()
\ No newline at end of file
+demo.queue(concurrency_count=1)
+demo.launch()